1LOCAL_PATH := $(call my-dir)
2include $(CLEAR_VARS)
3
4ifeq ($(ARCH_ARM_HAVE_NEON),true)
5  libvpx_target := armv7a-neon
6  libvpx_asm := .asm.s
7else ifeq ($(ARCH_ARM_HAVE_ARMV7A),true)
8  libvpx_target := armv7a
9  libvpx_asm := .asm.s
10endif
11
12ifeq ($(TARGET_ARCH),x86)
13  libvpx_target := x86
14  libvpx_asm := .asm
15endif
16
17ifeq ($(TARGET_ARCH),mips)
18  ifneq ($(ARCH_HAS_BIGENDIAN),true)
19    ifeq ($(ARCH_MIPS_DSP_REV),2)
20      libvpx_target := mips-dspr2
21      LOCAL_CFLAGS += -DMIPS_DSP_REV=$(ARCH_MIPS_DSP_REV)
22    else
23      libvpx_target := mips
24      ifeq ($(ARCH_MIPS_DSP_REV),1)
25        LOCAL_CFLAGS += -DMIPS_DSP_REV=$(ARCH_MIPS_DSP_REV)
26      else
27        LOCAL_CFLAGS += -DMIPS_DSP_REV=0
28      endif #mips_dsp_rev1
29    endif #mips_dsp_rev2
30  endif #bigendian
31endif #mips
32
33# Un-optimized targets
34libvpx_target ?= generic
35libvpx_asm ?= .asm
36
37libvpx_config_dir := $(LOCAL_PATH)/$(libvpx_target)
38libvpx_source_dir := $(LOCAL_PATH)/libvpx
39
40libvpx_codec_srcs := $(shell cat $(libvpx_config_dir)/libvpx_srcs.txt)
41
42LOCAL_SHARED_LIBRARIES += liblog
43LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog
44LOCAL_CFLAGS := -DHAVE_CONFIG_H=vpx_config.h
45LOCAL_CFLAGS += -Werror
46LOCAL_MODULE := libvpx_internal
47
48LOCAL_MODULE_CLASS := STATIC_LIBRARIES
49libvpx_intermediates := $(call local-intermediates-dir)
50
51# Extract the C files from the list and add them to LOCAL_SRC_FILES.
52libvpx_codec_srcs_unique := $(sort $(libvpx_codec_srcs))
53libvpx_codec_srcs_c := $(filter %.c, $(libvpx_codec_srcs_unique))
54ifeq ($(libvpx_target),x86)
55x86_asm_src_files := $(filter %.asm, $(libvpx_codec_srcs_unique))
56X86_ASM_SRCS := $(addprefix $(LOCAL_PATH)/libvpx/, $(x86_asm_src_files))
57X86_ASM_OBJS := $(addprefix $(libvpx_intermediates)/, $(x86_asm_src_files:%.asm=%.asm.o))
58endif
59# vpx_config.c is an auto-generated file in $(config_dir)
60libvpx_codec_srcs_c_static := $(filter-out vpx_config.c, $(libvpx_codec_srcs_c))
61LOCAL_SRC_FILES += $(addprefix libvpx/, $(libvpx_codec_srcs_c_static))
62LOCAL_SRC_FILES += $(libvpx_target)/vpx_config.c
63
64# ARM and x86 use an 'offsets' file in the assembly. It is generated by
65# tricking the compiler and generating non-functional output which is then
66# processed with grep. For ARM, this must be additionally converted from
67# RVCT (ARM's in-house compiler) format to GNU Assembler Format for gcc.
68
69# Offset files are currently used in vpx_scale for NEON and some encoder
70# functions used in both ARM and x86. These files can not be compiled and need
71# to be named accordingly to avoid auto-build rules. The encoder files are not
72# used yet but are included in the comments for future reference.
73
74ifneq ($(libvpx_target),x86)
75libvpx_asm_offsets_intermediates := \
76    vp8/encoder/vp8_asm_enc_offsets.intermediate \
77    vpx_scale/vpx_scale_asm_offsets.intermediate \
78
79libvpx_asm_offsets_files := \
80    vp8/encoder/vp8_asm_enc_offsets.asm \
81    vpx_scale/vpx_scale_asm_offsets.asm \
82
83endif
84# Build the S files with inline assembly.
85COMPILE_TO_S := $(addprefix $(libvpx_intermediates)/, $(libvpx_asm_offsets_intermediates))
86$(COMPILE_TO_S) : PRIVATE_INTERMEDIATES := $(libvpx_intermediates)
87$(COMPILE_TO_S) : PRIVATE_SOURCE_DIR := $(libvpx_source_dir)
88$(COMPILE_TO_S) : PRIVATE_CONFIG_DIR := $(libvpx_config_dir)
89$(COMPILE_TO_S) : PRIVATE_CUSTOM_TOOL = $(TARGET_CC) -S $(addprefix -I, $(TARGET_C_INCLUDES)) -I $(PRIVATE_INTERMEDIATES) -I $(PRIVATE_SOURCE_DIR) -I $(PRIVATE_CONFIG_DIR) -DINLINE_ASM -o $@ $<
90$(COMPILE_TO_S) : $(libvpx_intermediates)/%.intermediate : $(libvpx_source_dir)/%.c
91	$(transform-generated-source)
92
93# Extract the offsets from the inline assembly.
94OFFSETS_GEN := $(addprefix $(libvpx_intermediates)/, $(libvpx_asm_offsets_files))
95$(OFFSETS_GEN) : PRIVATE_OFFSET_PATTERN := '^[a-zA-Z0-9_]* EQU'
96$(OFFSETS_GEN) : PRIVATE_SOURCE_DIR := $(libvpx_source_dir)
97$(OFFSETS_GEN) : PRIVATE_CUSTOM_TOOL = grep $(PRIVATE_OFFSET_PATTERN) $< | tr -d '$$\#' | perl $(PRIVATE_SOURCE_DIR)/build/make/ads2gas.pl > $@
98$(OFFSETS_GEN) : %.asm : %.intermediate
99	$(transform-generated-source)
100
101LOCAL_GENERATED_SOURCES += $(OFFSETS_GEN)
102
103# This step is only required for ARM. MIPS uses intrinsics and x86 requires an
104# assembler to pre-process its assembly files.
105libvpx_asm_srcs := $(filter %.asm.s, $(libvpx_codec_srcs_unique))
106
107# The ARM assembly sources must be converted from ADS to GAS compatible format.
108VPX_GEN := $(addprefix $(libvpx_intermediates)/, $(libvpx_asm_srcs))
109$(VPX_GEN) : PRIVATE_SOURCE_DIR := $(libvpx_source_dir)
110$(VPX_GEN) : PRIVATE_CUSTOM_TOOL = cat $< | perl $(PRIVATE_SOURCE_DIR)/build/make/ads2gas.pl > $@
111$(VPX_GEN) : $(libvpx_intermediates)/%.s : $(libvpx_source_dir)/%
112	$(transform-generated-source)
113
114LOCAL_GENERATED_SOURCES += $(VPX_GEN)
115
116ifeq ($(libvpx_target),x86)
117libvpx_x86_asm_src_files := $(filter %.asm, $(libvpx_codec_srcs_unique))
118libvpx_x86_yasm_dir := prebuilts/misc/$(HOST_OS)-$(HOST_PREBUILT_ARCH)/yasm
119
120X86_ASM_GEN := $(addprefix $(libvpx_intermediates)/, $(libvpx_x86_asm_src_files:%.asm=%.asm.o))
121
122# Adding dependency on yasm generation
123$(X86_ASM_GEN) : $(libvpx_x86_yasm_dir)/yasm
124
125$(X86_ASM_GEN) : PRIVATE_YASM := $(libvpx_x86_yasm_dir)/yasm
126$(X86_ASM_GEN) : PRIVATE_SOURCE_DIR := $(libvpx_source_dir)
127$(X86_ASM_GEN) : PRIVATE_CONFIG_DIR := $(libvpx_config_dir)
128$(X86_ASM_GEN) : PRIVATE_CUSTOM_TOOL = $(PRIVATE_YASM) -f elf32 -I $(PRIVATE_SOURCE_DIR) -I $(PRIVATE_CONFIG_DIR) -o $@ $<
129$(X86_ASM_GEN) : $(libvpx_intermediates)/%.o : $(libvpx_source_dir)/%
130	$(transform-generated-source)
131
132LOCAL_GENERATED_SOURCES += $(X86_ASM_GEN)
133
134libvpx_x86_yasm_dir :=
135x86_asm_src_files :=
136endif
137
138LOCAL_C_INCLUDES := \
139    $(libvpx_source_dir) \
140    $(libvpx_config_dir) \
141    $(libvpx_intermediates)/vp8/common \
142    $(libvpx_intermediates)/vp8/decoder \
143    $(libvpx_intermediates)/vp8/encoder \
144    $(libvpx_intermediates)/vpx_scale \
145
146libvpx_target :=
147libvpx_asm :=
148libvpx_config_dir :=
149libvpx_source_dir :=
150libvpx_codec_srcs :=
151libvpx_intermediates :=
152libvpx_codec_srcs_unique :=
153libvpx_codec_srcs_c :=
154libvpx_codec_srcs_c_static :=
155libvpx_asm_offsets_intermediates :=
156libvpx_asm_offsets_files :=
157libvpx_asm_srcs :=
158
159include $(BUILD_STATIC_LIBRARY)
160